3 Rounds:
200m Run
10 Pull-ups
10 A-KBS
10 Wall Balls

Then,

Empty Barbell Warm-up lead by coach. 

400m Run
5 Pullups down the rack (45 Total)
5 G2OH down the rack (75-155/55-105)
400m Run
5/6/7/8/9/10 Burpees
5 Wall Balls down the wall (16-30/10-20)

Coach selects who zombies and humans are. Humans get a 2 minute head start.
If caught by a zombie, start WOD all over again (minus the 400m run). If you're a zombie and don't catch a human, it will be a coach's choice of penalty. Bottlenecking is a part of the game. Costume Advantage: You can sub out the Run with a 16/20 Cal Assault Bike ride.